ahaha, I would do it too if I have the money~ But..... It's just gonna cost WAY too much. There's trade off going to AWD though. You will have better "racing" launch but bad everyday stop to stop launch since Legends are too heavy and you'll be rubbing off the already "lack of low end". Second, you'll loose the most important "high speed cruising" ability of the Legend because AWD would mean a lot of power loss in the drivetrain when you are at high speed. Better route for an AWD is to get an Audi if you want the Luxury, Subaru if you want the pure mechanical AWD, and Evo VII next year if you want a AWD system that's somewhere in the middle of mechanical and electronical. Notice that those nice AWD vehicles all have max torque in the low-mid engine rev range.